GUB or gub may refer to:
- Gub, a 1991 album by Pigface
- GUB (cuneiform), a sign in cuneiform writing
- Glashütte Original, a German watchmaker
- Green University of Bangladesh
- Global University Bangladesh
- Guerrero Negro Airport, in Baja California, Mexico
- Gub (Glangevlin), a townland in the parish of Glangevlin, County Cavan, Republic of Ireland
- Gub (Kinawley), a townland in the parish of Kinawley, County Cavan, Republic of Ireland